It may not help you tie your shoe but that little plastic tip keeps the rest of the shoelace, the shoe string from unraveling into weak and useless threads.
它可能不能帮你系鞋带，但那小小的塑料头可以让鞋带的其余部分不会散开成脆弱无用的线。
Telomerase is known to protect telomeres which stop the string of DNA unravelling much like the plastic tips at the ends of shoelaces stop fraying.
正如人们所了解的，端粒酶因其能够保护端粒，从而阻止DNA链的分离，就像鞋带末端的塑料能防止其受到磨损。
It had fallen out at school and was carefully placed in a plastic tooth shaped container on a string.
他在学校掉的牙，那颗牙齿被小心地保存在一个牙型小塑料盒里，盒子穿在一根绳上。
Put the lid on. Cover the container with a big plastic sheet and tie it closed with some string or twine around the middle of the container.
盖上盖子。用大塑料布盖住容器，并用绳子将塑料布固定在容器上。
The residual bend results from the plastic deformation imparted as the string is spooled around the radius of the reel and guide arch.
在挠性管柱绕着卷筒半径和导拱缠绕时，所给予的塑性变形造成了残留弯曲。
The residual bend results from the plastic deformation imparted as the string is spooled around the radius of the reel and guide arch.
在挠性管柱绕着卷筒半径和导拱缠绕时，所给予的塑性变形造成了残留弯曲。
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